Wire barrel-hoop.



PATENTED JUNE 28, 1904.

J. F. POOL. WIRE BARREL HOOP.

APPLICATION FILED JAN. 17, 1903.

N0 MODEL.

UNITED STATES Patented June 28, 1904.

PATENT OFFICE.

JOHN F. POOL, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE BROOKLYN OOOPERAGE COMPANY, OF NEW YORK, N. Y., A CORPO- RATION OF NEW YORK.

WIRE BARREL-HOOP.

SPECIFICATION forming part of Letters Patent No. 763,794, dated June 28, 1904.

Application filed January 17, 1903.

To all whom it may concern.-

Be it known that 1, JOHN F. PooL, a subject of the King of Great Britain and Ireland, residing in Philadelphia, Pennsylvania, have invented certain Improvements in Wire Barrel-Hoops, of which the following is a specification.

The object of my invention is to so construct a wire barrel-hoop that the latter will retain the position to which it'has been driven upon the bilge of the barrel after the driving devices have been withdrawn. This object I attain by providing the inner side of the hoop with teeth which will engage the staves of the barrel and serve to prevent slipping of the hoop backwardly thereupon.

In the accompanying drawings, Figure 1 is a perspective view of a wire barrel-hoop constructed in accordance with my invention. Fig. 2 is an enlarged transverse section of said hoop; and Fig. 3 is an enlarged longitudinal section on the line a a, Fig. 2.

The ordinary wire barrel-hoop, owing to the limited area of contact of the same with the barrel-staves, and consequently the limited amount of frictional hold of the same upon said staves, frequently slips back on the tapering bilge of the barrel after the driving-head has been retracted and the pressure which forced the hoop to its proper position on the barrel has been removed therefrom. I find, however, that this objection can be overcome if the inner face of the wire hoop is toothed or serrated, so that when forcibly driven onto the Serial No. 139,432. (No model.)

bilge it will bite into the staves, and thus increase the area of frictional hold of the hoop upon said staves, especially if the teeth are such as to present faces transverse to the direction of slip of the hoop.

The teeth or serrations are diagonal to the longitudinal line of the hoop, as shown at 1 in Fig. 1,and they are also, by preference, abrupt on one face, as shown in Fig. 3, this abrupt face being that which engages the stave in any attempt of the hoop to slip backwardly from the position on the bilge to which it has been forced by the hoop-driving machine.

Having thus described my invention, I claim and desire to secure by Letters Patent 1. A barrel-hoop composed of material substantially circular in section, said hoop having its inner face provided with biting serrations which are diagonal to the central plane of the hoop and extend in each direction therefrom, substantially as described.

2. A Wire barrel-hoop made of material substantially circular in section having on its inner face biting serrations inclined to a radius of the hoop, said serrations being abrupt on one face and inclined on the other, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN F. POOL. Witnesses:

M. E. NEVILLE, R. RAUDENBUsH; 

